#!/bin/sh
#----------------------------------------------------------------------------
# /var/install/bin/rsyslogd-tools-manual-rotate rsyslogd Rotate log manually
#
# Copyright (c) 2001-2022 Ansgar Puester <ansgar.puester@freenet.de>
#
# Creation:     08.12.2016  ap
# Last Update:  $Id$
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------

# include eislib
. /var/install/include/eislib

ASK=/var/install/bin/ask
CAT=/bin/cat
RM=/bin/rm
MKTEMP=/bin/mktemp

# include config_shlib
. /var/install/bin/config_shlib

# set package name
package_name=rsyslogd

# include default configuration
. /etc/config.d/${package_name}

#exec 2>/tmp/$(basename ${0})-trace$$.log
#set -x

#----------------------------------------------------------------------------
# check if numeric value
# input : $1 - value
# return:  0 - numeric
#          1 - no numeric
#----------------------------------------------------------------------------
is_numeric ()
{
    echo "$1" | grep -q '^[0-9]*$'
}

# ---------------------------------------------------------------------------
# generate manual logrotate config
# ---------------------------------------------------------------------------
generate_manual_logrotote_config ()
{

   #tmpdir=$(mktemp -p /tmp -d XXXXXXXXXXXXX)
   tmpdir=/tmp/manual_logrotote; mkdir "${tmpdir}"

   [ "$index" -le 9 ] && act_num='0'
   act_num="$act_num$index"

   eval act_action='$RSYSLOGD_RULE_'${index}'_ACTION'
   eval act_pre='$RSYSLOGD_RULE_'${index}'_ROTATE_PRE_CMD'
   eval act_post='$RSYSLOGD_RULE_'${index}'_ROTATE_POST_CMD'
   eval act_int='$RSYSLOGD_RULE_'${index}'_ROTATE_LOG_INTERVAL'
   eval act_count='$RSYSLOGD_RULE_'${index}'_ROTATE_LOG_COUNT'
   eval act_rotate_mode='$RSYSLOGD_RULE_'${index}'_ROTATE_MODE'

   act_char_1=${act_action:0:1}
   [ "${act_char_1}" = '-' ] && act_action="${act_action:1}"

   if [ "${act_rotate_mode}" = 'size' ]
   then
      mecho --warn "Probably loss of log information when rotating an outchannel logfile"
   fi
   if [ -z "${act_post}" ]
   then
      mecho --warn "Empty RSYSLOGD_RULE_%_ROTATE_POST_CMD set to '/etc/init.d/rsyslogd --quiet reload'"
      act_post='/etc/init.d/rsyslogd --quiet reload'
   fi

   grep -v '^include' /etc/logrotate.conf > ${tmpdir}/logrotate_manually.conf

   {
   echo "#-------------------------------------------------------------------------------"
   echo "# $ACT_ROTATE_FILE file generated by $pgmname"
   echo "#"
   echo "# Do not edit this file, edit $rsyslogdfile"
   echo "# Creation date: `date`"
   echo "#-------------------------------------------------------------------------------"
   echo "$act_action {"
   echo "   $act_int"
   echo '   missingok'
   echo "   rotate $act_count"
   echo '   compress'
   echo '   notifempty'

   if [ ! "$act_pre" = '' ]
   then
      echo '   prerotate'
      echo "      $act_pre"
      echo '   endscript'
   fi

   if [ ! "$act_post" = '' ]
   then
      echo '   postrotate'
      echo "      $act_post"
      echo '   endscript'
   fi

   echo '}'
   } >> ${tmpdir}/logrotate_manually.conf

}

pgmname=`basename $0`

# set variables
rsyslogdfile=/etc/config.d/${package_name}

clrhome
mecho
mecho
mecho --info "rsyslogd: Rotate logfile manually"

# check parameter
has_error=0
if [ $# -ne  2 ]
then
   mecho --error "Fatal: to few parameters ($#/2)"
   has_error=1
fi

file=$1
index=$2

if ! is_numeric ${index}
then
   mecho --error "Fatal: parameter 2 is not numeric"
   has_error=1
fi

if [ "${has_error}" = 0 ]
then

   mecho
   mecho "File to rotate: ${file}"
   mecho
   #mecho "         Index: ${index}"

   generate_manual_logrotote_config

   #/usr/sbin/logrotate -d ${tmpdir}/logrotate_manually.conf
   /usr/sbin/logrotate -f ${tmpdir}/logrotate_manually.conf
   RC=$?

   mecho
   [ "${RC}" = 0 ] || opt='--warn'
   mecho ${opt} "Logrotate finished with return code ${RC}"
   mecho

   #echo "Halt:"
   #read halt

   ${RM} -rf ${tmpdir}
fi

mecho
mecho

anykey